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A current of dry air is passed through t...

A current of dry air is passed through the above apparatus containing two sets of bulbs . One set of bulbs is filled with the solution and second with the solvent . Finally that is attched with a U-tube containing `CaCl_(2)`, which is very efficient in absorbing the water vapour. Passing of dry air through all these three causes some change in weight.

Loss in weight `(W_(1))` of solution is proportional to

A

the weight of air passed in

B

the vapour pressure of solution

C

the vapour pressure of pure solvent

D

the weight of solute

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The correct Answer is:
b
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